Circuit/System Verification

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 GMC Yukon XL, 2010 GMC Yukon, 2010 Chevrolet Tahoe, 2010 Chevrolet Suburban, and 2010 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Verify LOC, LOCKED, or CODE is not displayed on radio.

If the radio displays LOC, LOCKED, or CODE, reprogram the radio. If the radio still displays LOC, LOCKED, or CODE after performing the reprogramming procedure, replace the radio.